Anti-interference device

Abstract

The utility model relates to the technical field of wireless anti-interference, and provides an anti-interference device which comprises an outer shell, an inner shell and an anti-interference structure. The inner shell is separably inserted into the outer shell along the insertion direction, and the inner part of the inner shell is suitable for placing an electronic element; the anti-interference structure is arranged in the outer shell and / or the inner shell. The inner shell is inserted into the outer shell, the outer shell is damaged preferentially compared with the inner shell when being impacted by the outside, the inner shell is effectively protected, when part or all of the anti-interference structures are arranged on the inner shell, it is guaranteed that the anti-interference structures arranged on the inner shell are not damaged, and even if part of the anti-interference structures arranged on the outer shell are damaged, the anti-interference structures can be prevented from being damaged. A certain anti-interference effect of the anti-interference device can still be maintained; and when the anti-interference structure is arranged on the outer shell, due to the split arrangement of the inner shell and the outer shell, the quick replacement effect of the outer shell can be effectively ensured, and the maintenance and replacement cost of the anti-interference device is effectively reduced.

Description

Technical Field

[0001] The present application relates to the technical field of wireless anti-interference, and in particular to an anti-interference device. Background Art

[0002] In the related art, the anti-interference device generally covers the outside of the electronic component with a box body and adds a shielding layer on the box body. However, the box body is exposed to the outside and is easily bumped, which may cause damage to the shielding layer and other protective layers on the box body, thereby weakening the wireless anti-interference capability, affecting the stable working state of the wireless network and increasing the maintenance cost of the device. Utility Model Content

[0003] An embodiment of the present application provides an anti-interference device to solve the technical problem in the prior art that wireless anti-interference devices are easily damaged and have high replacement costs. By setting an inner shell and an outer shell, and setting part of the anti-interference structure on the inner shell, the probability of damage to the anti-interference structure on the inner shell is reduced, and only the damaged outer shell needs to be replaced, thereby effectively reducing the maintenance cost of the anti-interference device.

[0004] The present application provides an anti-interference device, including:

[0005] outer shell;

[0006] An inner shell is detachably inserted into the outer shell along an insertion direction, and the interior of the inner shell is suitable for placing electronic components; an anti-interference structure is arranged on the outer shell and / or the inner shell.

[0007] In one embodiment, the anti-interference structure includes a first shielding layer and an absorbing layer, wherein the first shielding layer is disposed on one of the outer shell or the inner shell and is suitable for forming a Faraday cage structure; and the absorbing layer is disposed on the other one.

[0008] In one embodiment, the inner shell or the outer shell is provided with a vacuum interlayer, and the first shielding layer is provided in the vacuum interlayer.

[0009] In one embodiment, the anti-interference structure further includes a second shielding layer, the first shielding layer is arranged on the outer shell, and the absorbing layer and the second shielding layer are arranged on the inner shell;

[0010] The first shielding layer, the wave absorbing layer and the second shielding layer are sequentially arranged along a direction from the outer shell to the inner shell.

[0011] In one embodiment, the anti-interference device is further provided with a locking structure for locking the inner shell in the outer shell.

[0012] In one embodiment, the outer shell comprises a side wall extending along the insertion direction, and along the insertion direction, a first end of the outer shell is provided with an opening suitable for the inner shell to pass through, and a second end of the outer shell is closed with a front wall;

[0013] The inner shell is provided with an end cover, and the end cover is suitable for covering the opening.

[0014] In one embodiment, the locking structure includes a first threaded hole and a first connecting hole, the first threaded hole is provided on the outer shell, the first connecting hole is provided on the inner shell corresponding to the first threaded hole, and the first connecting hole is fixedly connected to the first threaded hole by a locking pin.

[0015] In one embodiment, the locking structure further includes a rotating rod and a locking rod, wherein the rotating rod is disposed in the inner housing along the insertion direction, and a first end of the rotating rod passes through the end cover, and a second end of the rotating rod passes through the inner housing and is located between the inner housing and the outer housing;

[0016] The first end of the locking rod is fixedly connected to the second end of the rotating rod, the second end of the locking rod is provided with the first connecting hole, and the locking rod is adapted to rotate with the rotating rod and switch between the avoidance position and the installation position;

[0017] In the avoidance position, the locking rod avoids the electronic component during the insertion process of the inner housing; in the installation position, the first connecting hole corresponds to the first threaded hole.

[0018] In one embodiment, the inner housing comprises a top wall and side walls arranged on both sides of the top wall along the insertion direction, and the rotating rod is penetrated through the top wall;

[0019] In the avoidance position, the locking rod is parallel to the top wall; in the installation position, the locking rod hangs down along the direction of gravity.

[0020] In one embodiment, the locking pin includes a threaded section and a straight section arranged in sequence, the threaded section is suitable for cooperating with the first threaded hole, and the straight section is suitable for cooperating with the first connecting hole, one of the outer surface of the straight section and the inner surface of the first connecting hole is provided with a threaded portion extending along the insertion direction, and the other is provided with a protrusion cooperating with the threaded portion.

[0021] In one embodiment, the anti-interference device further comprises a connecting plate, a first side of the connecting plate is connected to the outer shell, a second side of the connecting plate is connected to the mounting surface, the connecting plate is provided with a second connecting hole, the second connecting hole is staggered with the anti-interference device, and a second threaded hole is provided on the mounting surface corresponding to the second connecting hole;

[0022] The connecting plate further comprises connecting ears, wherein two connecting ears are arranged opposite to each other and are located at a first side of the connecting plate, and a third connecting hole is arranged on the connecting ear, and a third threaded hole is arranged on the outer shell corresponding to the third connecting hole.

[0023] The anti-interference device provided in the embodiment of the present application, by inserting the inner shell into the outer shell, the outer shell will be damaged preferentially compared to the inner shell when subjected to external impact, thereby effectively protecting the inner shell. When part or all of the anti-interference structure is provided on the inner shell, it is ensured that the anti-interference structure provided on the inner shell is not damaged. Even when part of the anti-interference structure provided on the outer shell is damaged, a certain anti-interference effect of the anti-interference device can still be maintained. When the anti-interference structures are all provided on the outer shell, due to the split arrangement of the inner shell and the outer shell, the quick replacement effect of the outer shell can also be effectively guaranteed. During maintenance, the user only needs to replace the damaged outer shell and the anti-interference structure provided on the outer shell (of course, the anti-interference structure can also be provided entirely on the inner shell, in which case only the outer shell needs to be replaced), thereby effectively reducing the maintenance and replacement cost of the anti-interference device. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the present invention or the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0025] Figure 1 It is one of the structural schematic diagrams of the anti-interference device provided in the embodiment of the present application.

[0026] Figure 2 It is a front view of the anti-interference device provided in an embodiment of the present application.

[0027] Figure 3 This is the second structural schematic diagram of the anti-interference device provided in the embodiment of the present application.

[0028] Figure 4 It is a schematic diagram of the structure of the locking pin and locking rod of the anti-interference device provided in an embodiment of the present application.

[0029] Reference numerals:

[0030] 10. outer shell; 11. side wall; 12. front wall; 13. opening; 14. first threaded hole; 15. wiring port;

[0031] 2. Locking structure; 20. Inner shell; 21. End cover; 22. Rotating rod; 23. Locking rod; 231. First connecting hole; 232. Threaded portion; 24. Locking pin; 241. Threaded section; 242. Straight section; 243. Protrusion; 25. Top wall; 26. Side wall; 27. Slide groove;

[0032] 30. Anti-interference structure; 31. First shielding layer; 32. Wave absorbing layer; 33. Second shielding layer;

[0033] 40. Connecting plate; 41. Second connecting hole; 42. Connecting ear; 421. Third connecting hole. DETAILED DESCRIPTION

[0034] In order to make the purpose, technical solution and advantages of the present invention clearer, the technical solution of the present invention will be clearly and completely described below in conjunction with the drawings of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0035] Figure 1 This is one of the schematic diagrams of the structure of the anti-interference device provided in the embodiment of the utility model, wherein, for the convenience of display Figure 1 The inner housing 20 and the outer housing 10 are shown misaligned. It can be understood that in actual situations, the inner housing 20 is inserted into the outer housing 10 along the insertion direction. Figure 1 An embodiment of the present application provides an anti-interference device, including an outer shell 10, an inner shell 20 and an anti-interference structure 30; the inner shell 20 can be detachably inserted into the outer shell 10 along the insertion direction, and the interior of the inner shell 20 is suitable for placing electronic components; the anti-interference structure 30 is arranged on the outer shell 10 and / or the inner shell 20.

[0036] According to the anti-interference device provided in the embodiment of the present application, when the user inserts the inner shell 20 into the outer shell 10, external interference signals will be shielded by the anti-interference structure 30 provided on the inner shell 20 and / or the outer shell 10, thereby avoiding interference with the wireless signals of the electronic components inside the inner shell 20.

[0037] It should be noted that in the related art, the anti-interference device generally covers the outside of the electronic component with a box body (corresponding to the inner shell 20 and the outer shell 10 of the present application), and adds a shielding layer on the box body. However, the box body is exposed to the outside and is easily bumped, which may cause damage to the shielding layer and other protective layers on the box body, thereby weakening the wireless anti-interference capability, affecting the stable working state of the wireless network and increasing the maintenance cost of the device.

[0038] The anti-interference device provided in the embodiment of the present application, by inserting the inner shell 20 into the outer shell 10, the outer shell 10 will be damaged preferentially compared to the inner shell 20 when subjected to external impact, thereby effectively protecting the inner shell 20, and when part or all of the anti-interference structure 30 is provided on the inner shell 20, it is ensured that the anti-interference structure 30 provided on the inner shell 20 is not damaged, and even when part of the anti-interference structure 30 provided on the outer shell 10 is damaged, a certain anti-interference effect of the anti-interference device can still be maintained; and when the anti-interference structures are all provided on the outer shell 10, due to the split setting of the inner shell 20 and the outer shell 10, the quick replacement effect of the outer shell 10 can also be effectively guaranteed. During maintenance, the user only needs to replace the damaged outer shell 10 and the anti-interference structure 30 provided on the outer shell 10 (of course, the anti-interference structure 30 can also be provided entirely on the inner shell 20, in which case only the outer shell 10 is replaced), thereby effectively reducing the maintenance and replacement cost of the anti-interference device.

[0039] In this embodiment, “the inner housing 20 is provided with electronic components” can be understood as the electronic components being placed in the space enclosed by the outer housing 10 and the inner housing 20 (in Figure 1 and Figure 3 For example, the top wall 25, the side wall 26 of the inner shell 20 and the side wall 11 of the outer shell 10 are formed together), or it can be a space directly formed by the inner shell 20 itself (in this case, the electronic components are not in contact with the outer shell 10).

[0040] In this embodiment, the outer shell 10 and the inner shell 20 are both cubic structures. Of course, the shapes of the outer shell 10 and the inner shell 20 can be adaptively adjusted based on actual needs, such as adopting a cylindrical shape, a quasi-cube shape, etc.

[0041] In this embodiment, a certain gap may be left between the outer shell 10 and the inner shell 20 except for the fitted wall surfaces, and a certain buffer material may be provided in the gap to improve the protection effect of the inner shell 20 .

[0042] In this embodiment, part of the anti-interference structure 30 is arranged on the outer wall surface of the inner shell 20, and the other part of the anti-interference structure 30 is arranged on the inner wall surface of the outer shell 10; of course, the possibility of setting part of the anti-interference structure 30 in the gap between the inner shell 20 and the outer shell 10 is not ruled out.

[0043] In one embodiment, in combination Figure 1 As shown, the anti-interference structure 30 includes a first shielding layer 31 and an absorbing layer 32. The first shielding layer 31 is disposed on one of the outer shell 10 or the inner shell 20, suitable for forming a Faraday cage structure; the absorbing layer 32 is disposed on the other one.

[0044] In this embodiment, the Faraday cage structure formed by the first shielding layer 31 shields external electromagnetic interference (mainly in the form of electromagnetic waves) to weaken the energy of the electromagnetic interference. A small amount of electromagnetic energy passes through the first shielding layer 31 and enters the absorbing layer 32 to be absorbed and converted into heat energy or eliminated or weakened through the resonance effect.

[0045] In this embodiment, when the outer shell 10 is hit and the Faraday cage structure of the internal first shielding layer 31 is destroyed, the absorbing layer 32 on the inner shell 20 is not affected and can continue to absorb and weaken external electromagnetic waves, thereby maintaining the stable operation of the electronic components inside the inner shell 20.

[0046] In this embodiment, the first shielding layer 31 is arranged on the inner wall surface of the outer shell 10, and the absorbing layer 32 is arranged on the outer wall surface of the inner shell 20, so as to avoid the first shielding layer 31 or the absorbing layer 32 being exposed to the outside world and prolonging the service life; of course, it is not ruled out that the first shielding layer 31 is arranged on the inner shell 20 and the absorbing layer 32 is arranged on the outer shell 10, and then the absorbing layer 32 absorbs the external electromagnetic interference and then shields it through the first shielding layer 31.

[0047] In this embodiment, the first shielding layer 31 is an aluminum foil mesh, and the absorbing layer 32 is a nickel-plated graphene layer; of course, the first shielding layer 31 can also be set to other metal meshes to form a Faraday cage structure, such as copper, iron, etc., and the absorbing layer 32 can also be other materials with a first electromagnetic wave absorption capability, such as carbon fiber, graphene, etc.

[0048] In one embodiment, in combination Figure 1 As shown, the inner shell 20 or the outer shell 10 is provided with a vacuum interlayer suitable for placing the first shielding layer 31 .

[0049] In this embodiment, the vacuum interlayer itself has good electromagnetic shielding properties because there are no gas molecules therein to conduct electromagnetic waves. Placing the tin foil mesh in the vacuum interlayer can enhance the electromagnetic shielding effect, and because the tin foil itself has good electrical conductivity, it can effectively absorb and scatter electromagnetic waves, thereby further reducing the impact of external interference on the device; and the vacuum interlayer has extremely low thermal conductivity, which can effectively isolate internal and external heat conduction. Placing the tin foil mesh in the vacuum interlayer can further enhance the thermal isolation effect, because the tin foil can reflect most of the thermal radiation, reduce the transmission and loss of heat, and thus maintain the stable temperature of the device; further, arranging the tin foil mesh in the vacuum interlayer can form a structurally stable anti-interference layer that is not easily affected by the external environment. The stability of the vacuum interlayer can ensure the integrity and effectiveness of the tin foil mesh, thereby ensuring the long-term stable operation of the anti-interference structure 30.

[0050] In this embodiment, the vacuum interlayer is disposed on the outer shell 10 . Of course, the possibility of the vacuum interlayer being disposed on the inner shell 20 is not excluded.

[0051] In one embodiment, in combination Figure 1 As shown, the anti-interference structure 30 also includes a second shielding layer 33, the first shielding layer 31 is arranged on the outer shell 10, and the absorbing layer 32 and the second shielding layer 33 are arranged on the inner shell 20; the first shielding layer 31, the absorbing layer 32 and the second shielding layer 33 are arranged in sequence along the direction from the outer shell 10 to the inner shell 20.

[0052] In this embodiment, the Faraday cage structure formed by the first shielding layer 31 shields external electromagnetic interference (mainly in the form of electromagnetic waves) to weaken the energy of electromagnetic interference. A small amount of electromagnetic energy passes through the first shielding layer 31 and enters the absorbing layer 32 to be absorbed and converted into heat energy or eliminated or weakened through the resonance effect. When there is residual electromagnetic energy passing through the absorbing layer 32, it will be further shielded or absorbed by the second shielding layer 33 to ensure the overall anti-interference effect of the anti-interference device.

[0053] Of course, the positional relationship between the first shielding layer 31, the absorbing layer 32 and the second shielding layer 33 can be adjusted according to needs. For example, the second shielding layer 33, the absorbing layer 32 and the first shielding layer 31 can be arranged in sequence along the direction from the outer shell 10 to the inner shell 20; the first shielding layer 31 and the absorbing layer 32 can also be arranged on the outer shell 10, and the second shielding layer 33 can be arranged on the inner shell 20.

[0054] In this embodiment, the second shielding layer 33 is a hybrid shielding, wherein the material of the hybrid shielding layer can be matched according to the actual application scenario, such as a tin foil layer and a copper layer mixed or stacked, or a carbon material layer and an aluminum foil layer or a copper layer mixed, wherein the carbon material layer can be a carbon nanotube layer, a graphene layer, a carbon fiber layer, a carbon-based composite material layer, etc.

[0055] In one embodiment, the anti-interference device is further provided with a locking structure 2 for locking the inner housing 20 in the outer housing 10. The locking structure 2 realizes a fixed connection between the inner housing 20 and the outer housing 10, ensuring that during the use of the anti-interference device, there is no relative movement between the inner housing 20 and the outer housing 10 to generate a gap and cause anti-interference failure.

[0056] In one embodiment, in combination Figure 3As shown, the outer shell 10 includes a side wall 11, which extends along the insertion direction. Along the insertion direction, the first end of the outer shell 10 is provided with an opening 13 suitable for the inner shell 20 to pass through, and the second end of the outer shell 10 is closed with a front wall 12; the inner shell 20 is provided with an end cover 21, and the end cover 21 is suitable for covering the opening 13. After the inner shell 20 is inserted into the outer shell 10, the end cover 21 and the side wall 11 and the front wall 12 of the outer shell 10 form a closed structure, ensuring that the external electromagnetic interference will not directly enter the outer shell 10 through the gap between the inner shell 20 and the outer shell 10, but needs to be shielded by the first shielding layer 31 before entering the outer shell 10, which effectively ensures the anti-interference effect of the anti-interference device.

[0057] In this embodiment, combined with Figure 1 As shown, the side wall 11 of the outer shell 10 is provided with a slide rail (not shown in the figure), and the inner shell 20 is provided with a slide groove 27 corresponding to the slide rail. The inner shell 20 slides along the slide rail and is inserted into the outer shell 10, thereby reducing the friction between the inner shell 20 and the outer shell 10 and extending the service life of the anti-interference device.

[0058] In one embodiment, in combination Figure 1 and Figure 2 As shown, the locking structure 2 includes a first threaded hole 14 and a first connecting hole 231. The first threaded hole 14 is provided on the outer shell 10. The first connecting hole 231 is provided on the inner shell 20 corresponding to the first threaded hole 14. The first connecting hole 231 is fixedly connected with the first threaded hole 14 through a locking pin 24. The locking pin 24 is penetrated through the first threaded hole 14 and the first connecting hole 231 to fix the inner shell 20 and the outer shell 10 in the form of threaded connection, so as to prevent the inner shell 20 from moving in the outer shell 10, causing collision and causing damage to the anti-interference structure 30 on the inner shell 20, and reducing the size of the fixing structure (locking pin 24) between the outer shell 10 and the inner shell 20 to reduce the vibration transmission between the two, and effectively protect the inner shell 20 from damage.

[0059] In this embodiment, the outer shell 10 is provided with two first threaded holes 14, and the inner shell 20 is correspondingly provided with two first connecting holes 231. The two first threaded holes 14 are symmetrically arranged on both sides of the dividing surface of the outer shell 10; of course, the number and positions of the first threaded holes 14 and the first connecting holes 231 can be adaptively adjusted according to actual needs.

[0060] In one embodiment, in combination Figure 1As shown, the locking structure 2 also includes a rotating rod 22 and a locking rod 23. The rotating rod 22 is penetrated in the inner shell 20 along the insertion direction, and the first end of the rotating rod 22 passes through the end cover 21, and the second end passes through the inner shell 20 and is located between the inner shell 20 and the outer shell 10; the first end of the locking rod 23 is fixedly connected to the second end of the rotating rod 22, and the second end of the locking rod 23 is provided with a first connecting hole 231, and the locking rod 23 is suitable for rotating with the rotating rod 22 and switching between the avoidance position and the installation position; in the avoidance position, the locking rod 23 avoids the electronic components during the plugging process of the inner shell 20; in the installation position, the first connecting hole 231 corresponds to the first threaded hole 14.

[0061] In this embodiment, when the user inserts the inner shell 20 into the outer shell 10, the user first rotates the rotating rod 22 to drive the locking rod 23 to switch to the avoidance position to avoid electronic components during the insertion process until the inner shell 20 is inserted into place (the end plate abuts the side panel of the outer shell 10), rotates the rotating rod 22 and drives the locking rod 23 to switch to the installation position, and the user passes the locking pin 24 from the outside of the outer shell 10 through the first threaded hole 14 and the first connecting hole 231 in sequence to fix the inner shell 20 and the outer shell 10.

[0062] In this embodiment, since the inner shell 20 needs to be inserted into the outer shell 10 along the insertion direction, an opening 13 needs to be opened on the inner shell 20 on the side opposite to the end plate of the inner shell 20. The opening 13 makes it impossible to set the first connecting hole 231 to be connected with the first threaded hole 14. By setting the locking rod 23 to switch between the avoidance position and the installation position, while ensuring that the electronic components are not interfered with during the insertion of the inner shell 20, the position of the second end of the locking rod 23 can be adjusted, that is, the setting position of the first connecting hole 231 relative to the outer shell 10 is more flexible, and the first threaded hole 14 can be effectively adapted by changing the position of the first connecting hole 231.

[0063] In one embodiment, in combination Figure 1 As shown, the inner shell 20 includes a top wall 25 and side walls 26 arranged on both sides of the top wall 25 along the insertion direction, and the top wall 25 is penetrated by a rotating rod 22; the rotating rod 22 hidden inside the top wall 25 avoids the collision between the rotating rod 22 and the electronic components; of course, the rotating rod 22 may not be hidden in the top wall 25, and may also be arranged on the outside of the top wall 25 (that is, the space between the outside of the top wall 25 and the outer shell 10), or on the inside of the top wall 25 (the side where the electronic components are located), and pass through the end plate to achieve fixation while avoiding the electronic components.

[0064] In the avoidance position, the locking rod 23 is parallel to the top wall 25; in the installation position, the locking rod 23 falls in the direction of gravity. That is, when the user inserts the inner housing 20, the user needs to keep the locking rod 23 horizontal and overlapped with the top wall 25 to avoid the electronic components. After the inner housing 20 is in place, the user only needs to release the rotating rod 22, and the locking rod 23 will naturally fall under the action of gravity. The user does not need to manually align the first threaded hole 14 with the first connecting hole 231, and the installation is simpler and more convenient.

[0065] Of course, in other embodiments, in the avoidance position, the locking rod 23 and the top wall 25 may also be at other angles, such as the locking rod 23 is rotated toward the outer shell 10 to avoid the electronic components; in the installation position, the user can manually control the rotation angle of the rotating rod 22 to adjust the position of the first connecting hole 231 on the locking rod 23 to cooperate with the first threaded hole 14.

[0066] In one embodiment, in combination Figure 4 As shown, the locking pin 24 includes a threaded section 241 and a straight section 242 which are arranged in sequence, the threaded section 241 is suitable for cooperating with the first threaded hole 14, and the straight section 242 is suitable for cooperating with the first connecting hole 231, and one of the outer surface of the straight section 242 and the inner surface of the first connecting hole 231 is provided with a threaded portion 232 extending along the insertion direction, and the other is provided with a protrusion 243 cooperating with the threaded portion 232.

[0067] In this embodiment, the straight tube section 242 is passed through the first threaded hole 14 and abutted against the locking rod 23. When the threaded section 241 is screwed and fixed with the first threaded hole 14 to realize the connection between the locking pin 24 and the outer shell 10, the protrusion 243 on the straight tube section 242 is screwed and fixed with the threaded portion 232 in the first connecting hole 231 to realize the connection between the locking pin 24 and the inner shell 20, thereby ensuring the relative fixation of the inner shell 20 and the outer shell 10.

[0068] In this embodiment, the protrusion 243 is arranged on the straight tube section 242, and the threaded portion 232 is arranged in the first connecting hole 231. Of course, the protrusion 243 can also be arranged in the first connecting hole 231, and the threaded portion 232 can be arranged on the straight tube section 242 to achieve the connection between the two.

[0069] In one embodiment, in combination Figure 1 and Figure 2 As shown, the first end of the outer shell 10 is arranged opposite to the second end of the outer shell 10, and the outer shell 10 includes a wiring port 15, which is arranged on the front wall 12 to facilitate the electrical connection between the electronic components in the anti-interference device and the external device. In this way, the integrity of the side wall 11 of the outer shell 10 is ensured, so that the shielding effect of the Faraday cage structure formed by the first shielding layer 31 arranged in the side wall 11 is better.

[0070] In one embodiment, in combination Figure 2 and Figure 3 As shown, the anti-interference device further includes a connecting plate 40, a first side of the connecting plate 40 is connected to the outer shell 10, a second side is connected to the mounting surface, and the connecting plate 40 is provided with a second connecting hole 41, the second connecting hole 41 is staggered with the anti-interference device, and a second threaded hole is provided on the mounting surface corresponding to the second connecting hole 41. The staggered setting allows the user to install the connecting plate 40 and the outer shell 10 as a whole to the mounting surface, and the installation process of the fixing parts (bolts, screws, etc.) will not cause impact on the outer shell 10, thereby avoiding damage to the outer shell 10.

[0071] The installation surface may be a housing surface of different devices or a surface of a set installation location.

[0072] In this embodiment, the first side and the second side are opposite sides. Of course, the possibility that the first side and the second side are adjacent sides is not excluded.

[0073] In one embodiment, in combination Figure 2 and Figure 3 As shown, the connecting plate 40 further includes connecting ears 42, two connecting ears 42 are arranged opposite to each other and are located on the first side of the connecting plate 40, the connecting ears 42 are provided with a third connecting hole 421, and a third threaded hole is provided on the outer shell 10 corresponding to the third connecting hole 421. When the outer shell 10 is installed on the connecting plate 40, the connecting ears 42 arranged opposite to each other play a role of pre-positioning to prevent the outer shell 10 from deviating, and the third connecting hole 421 on the connecting ears 42 and the second connecting hole 41 on the connecting plate 40 are both located on the first side of the connecting plate 40, that is, the user can complete the fixing of the connecting plate 40 to the outer shell 10 and the fixing of the connecting plate 40 to the mounting surface on the first side, which effectively improves the user's installation experience.

[0074] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present application.

Claims

1. An anti-interference device, characterized in that: include: An outer shell (10); An inner housing (20) is detachably inserted into the outer housing (10) along an insertion direction, and the interior of the inner housing (20) is suitable for accommodating electronic components; An anti-interference structure (30), wherein the anti-interference structure (30) is arranged on the outer shell (10) and / or the inner shell (20).

2. The anti-interference device according to claim 1, characterized in that: The anti-interference structure (30) comprises a first shielding layer (31) and an absorbing layer (32); the first shielding layer (31) is arranged on one of the outer shell (10) and the inner shell (20) and is suitable for forming a Faraday cage structure; the absorbing layer (32) is arranged on the other one.

3. The anti-interference device according to claim 2, characterized in that: The inner shell (20) or the outer shell (10) is provided with a vacuum interlayer, and the first shielding layer (31) is provided in the vacuum interlayer.

4. The anti-interference device according to claim 2, characterized in that: The anti-interference structure (30) further comprises a second shielding layer (33), wherein the first shielding layer (31) is arranged on the outer shell (10), and the wave absorbing layer (32) and the second shielding layer (33) are arranged on the inner shell (20); The first shielding layer (31), the wave absorbing layer (32) and the second shielding layer (33) are sequentially arranged along a direction from the outer shell (10) toward the inner shell (20).

5. The anti-interference device according to any one of claims 1 to 4, characterized in that: The anti-interference device is also provided with a locking structure (2) for locking the inner housing (20) in the outer housing (10).

6. The anti-interference device according to claim 5, characterized in that: The outer shell (10) comprises a side wall (11), wherein the side wall (11) extends along the insertion direction; along the insertion direction, a first end of the outer shell (10) is provided with an opening (13) suitable for the inner shell (20) to pass through; a second end of the outer shell (10) is closed with a front wall (12); the inner shell (20) is provided with an end cover (21), wherein the end cover (21) is suitable for covering the opening (13).

7. The anti-interference device according to claim 6, characterized in that: The locking structure (2) comprises a first threaded hole (14) and a first connecting hole (231); the first threaded hole (14) is provided on the outer shell (10); the first connecting hole (231) is provided on the inner shell (20) corresponding to the first threaded hole (14); the first connecting hole (231) is fixedly connected to the first threaded hole (14) via a locking pin (24).

8. The anti-interference device according to claim 7, characterized in that: The locking structure (2) further comprises a rotating rod (22) and a locking rod (23), wherein the rotating rod (22) is arranged to penetrate the inner shell (20) along the insertion direction, and a first end of the rotating rod (22) penetrates the end cover (21), and a second end penetrates the inner shell (20) and is located between the inner shell (20) and the outer shell (10); The first end of the locking rod (23) is fixedly connected to the second end of the rotating rod (22), the second end of the locking rod (23) is provided with the first connecting hole (231), and the locking rod (23) is suitable for rotating with the rotating rod (22) and switching between the avoidance position and the installation position; In the avoidance position, the locking rod (23) avoids the electronic component during the plugging process of the inner housing (20); in the installation position, the first connection hole (231) corresponds to the first threaded hole (14).

9. The anti-interference device according to claim 8, characterized in that: The inner housing (20) comprises a top wall (25) and side walls (26) arranged on both sides of the top wall (25) along the insertion direction, and the rotating rod (22) is penetrated by the top wall (25); In the avoidance position, the locking rod (23) is parallel to the top wall (25); in the installation position, the locking rod (23) hangs down along the direction of gravity.

10. The anti-interference device according to claim 7, characterized in that: The locking pin (24) comprises a threaded section (241) and a straight section (242) which are arranged in sequence, wherein the threaded section (241) is suitable for cooperating with the first threaded hole (14), and the straight section (242) is suitable for cooperating with the first connecting hole (231), and one of the outer surface of the straight section (242) and the inner surface of the first connecting hole (231) is provided with a threaded portion (232) extending along the insertion direction, and the other is provided with a protrusion (243) cooperating with the threaded portion (232).

11. The anti-interference device according to any one of claims 1 to 4, characterized in that: The anti-interference device further comprises a connecting plate (40), a first side of the connecting plate (40) being connected to the outer shell (10), and a second side of the connecting plate (40) being connected to the mounting surface, the connecting plate (40) being provided with a second connecting hole (41), the second connecting hole (41) being arranged offset from the anti-interference device, and a second threaded hole being provided on the mounting surface corresponding to the second connecting hole (41); The connecting plate (40) further comprises connecting ears (42), wherein the two connecting ears (42) are arranged opposite to each other and are located on a first side of the connecting plate (40), and the connecting ears (42) are provided with a third connecting hole (421), and a third threaded hole is provided on the outer shell (10) corresponding to the third connecting hole (421).

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